Charles m



(N Model.)

0. M. BURGESS." LOGKGASE.

Patented Mar. 12, 1889.

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UNITED STATES Pater @rricn.

(l-IARLES M. BURGESS, OF XElV BRITAIN, COIX'NEC'IICUI, ASSIGNOR TO THE RUSSELL & ERlYIN MANUFACTURING COMPANY, OF SAME PLACE.

LOCK-GAS E.

SPECIFICATION forming part of Letters Patent No. 399,240, date: March 12, 1889.

Application filed January 24, 1889, Serial No. 297,400. (No model.)

To all zrhom. if vim/y concern.- F each other at the front and rear of the lock, Be it known that I, CHARLES M. BURGEss, completel; inclose the lock-case upon allsides, a citizen of thel'nited States, residing at New excepting the top and bottom ends. These I Britain, in the county oi: Hartford and State close by means of the end plates, 17 17, which 55 5 of Connecticut, have invented certain new end plates are provided with tcnons 18, that and useful Improvements in Janus-Face are received in mortises in the lock-plate l3 Locks, oi which the following is a speciiicaand are riveted down for securing the parts tion. together. If desired, like teuons might be My invention relates to improt'ements in formed at one or both ends, by which to se- 60 IO .lanus'la-ce locks; and the main object of my cure one end of the end plate to the part 9 of improvement is to form a Janus-face lock of the lace-plate, or to said part at one end and sheet metal. the part 12 at the other end.

In the accompanying drawings, Figure 1 19 19 1f) designate plain posts al'lixed tothe a front elevation showing one of the broad lock-plate l the front ends ol which term 65 sides of my lock. Fig. 2 is a like view of said supports for the cap-plate.

ease with the cap-plate removed. Fig. 3 is a 20 designates a hollow post, the front end front elevation. Fig. 4 is a rear elevation. of which also lorms a support or scat tor the Fig. 5 is a sectional view on line .1: .1: of Fig. cap-plate, while its middle portion provided 52. Fig. (3 is a vertical section through a porwith a nut, 21, for receiving the screw 26, 20 tion of the case on the line y of Fig. 1. Fig. which holds the cap-plate A in place. 1 form 7 is a plan view of the blank for forming the this post from a sheetemetal blank formed as post which receives the cap-screw; and Fig. shown in Fig. 7. The main portion of this 8 is a portion of a blank for making a lockblank is in the form of a simpleband or strip, plate in a slightly-modified form of case. which is bent into the U form shown in Fig. 2, 7 5 A designates the cap-plate, and B the lockwhile the nut 21 projects from one edge and plate. Upon the front edge of the lock'plate is bent downward at right angles to the body B, I form the major portion of the faceplate of said post. At the other edge of the blank ll, and the remaining portion 10 of said face- Iform alug or tenou, 22, which is received in a plate upon the front edge of the capplate A, hole in theloek-platc and by whichitis riveted S0 0 said edges being bent toward each other from I thereto. This post 20, it will be seen, is he]- each plate and forming a longitudinal seam, low, and the nut 21. is inside the lock-case, so 11, down through the front face of the lock, that it is not necessary to perforate the lookas shown in Figs. 3 and I also bend the plate B for the reception of the cap-screw 26. rear edges of the lock-plate and cap-plate in I prefer in all cases to corrugate or rib both 85 5 like manner, so that a part, 12, of the rear I the 1oek-plate and cap-plate. These ribs or edge is formed upon the lock-plate, and the corrugations may be arranged on any desired remaining part, 13, is formed upon the cap- 1 lines and so as to produce any pleasing dcplate, the two parts having their edges abnti sign. They give the lock-case a neat and ting against each other and forming a seam i finished appearance, making it somewhat re 0 40 along the rear edge of the lock, as shown at semble cast-mctallocks of this class, and they ll, Figs. 4., 5, and 6. I prefer to form a tenon 1 also serve to stiffen or strengthen the plates. 1

or tenons, 15, on one of said edges, and acor- It desired, they may be arranged as shown,

responding recess, 16, on the other, to act as extending around near the edges and down a dowel-pin and socket for preventing the across the body of each plate, to give a 1l2l11- 5 5 cap-plate A from moving vertically on the eled appearance, in which arrangement 23 loclcplate 1-3. \Vhile this tenon and recess designates the vertical ribs and i l the horiare preferable, they are not necessary, espei zontal ribs at the upper and lower ends of the cially when all of the features herein do case,while 25 designates what nlay be termed scribed for my lock case are present. l1alf-ribs,the samebeing rounded upon the too 0 The lock-plate and cap-plate, both coni inside to produce a sunken panel, while upon strueted with their edges turned so asto meet 1 their outer edge the metal extends in a straight line from the summit of the ribs 25 t the upper and lower edges of the plates. As shown, the horizontal ribs 24 and 25 form a seat or depression upon the inner face of the two plates, (the lock-plate and cap-plate,) within which depressions the front and rear edges of the end plates, 17, may rest, as shown in Fig. (5, and thereby serve to assist in holding the parts in place.

In Fig. 8 I have shown a blank for a lockplate having a portion of the face-plate 9 formed upon one edge, and a port-ion, 12, of the rear edge of the lock-ease formed at the other edge of said cap-plate, substantially as in the construction first described. On the part 12 there is a tenon, 27, for entering a corresponding mortise inthe cap-plate, substantially as does the tenon 15 and mortise 11; in Fig. 4. Instead, however, of the solid end plate, 17,-for the top and bottom of the look, I form the upper and lower edges of the cap and lock plate with a portion, 28, for bending over and closing the upper and lower ends of the lock, thereby embodying for said upper and lower ends the construction hereinbefore described for the rear edge of the lock-case.

It will be seen from the foregoing construction that I have produced a J anus-face lockcase from sheet-metal which has all the ap pearance of the ordinary east-metal Janusface lock-case, and, so far as I know, I am the first to produce a lock of this class from sheet metal. It is evident that some modifications may be made therefrom and still produce a similar lock, and therefore I do not wish to confine myself to the exact details of construction in all particulars.

I claim as my invention p 1. The J anus-face lock formed of sheet metal and having its lock-plate and cap-plate ribbed or corrugated, substantially as described, and for the purpose specified.

2. A Janus-face sheet-metal lock having its lock-plate and cap-plate bent toward each other at their front vertical edges to form the face-plate, substantially as described, and for the purpose specified.

3. A Janus-face sheet-metal lock having its lock-plate and cap-plate bent toward each other at their vertical edges to form the faceplate and rear edge of the lock-case,subst-antially as described, and for the purpose specified. A

4. In a Janus-face lock formed of sheet metal, the lock-plate and cap-plate provided with horizontal beads or corrugations at their upper and lower ends, in combination with the upper and lower end plates, whose edges are reeei ved within said corrugations, substantially as described, and for the purpose specified.

5. In a Janus-face lock, the hollow sheetmetal post within the body of the lockcase and prot'ided with the integrally-formed nut 21., -t'or receiving the cap-screw, substantially as describmhaml for the purpose specified.

cuAs. M. BURGESS:

\Vitnesses: 7

Tires. S. BisHoP, M. S. WIARD. 

